<< Back to man.ChinaUnix.net

18.8. Creating a Self-Signed Certificate

You can create your own self-signed certificate. Note that a self-signed certificate does not provide the security guarantees of a CA-signed certificate. Refer to Section 18.5 Types of Certificates for more details about certificates.

To make your own self-signed certificate, first create a random key using the instructions provided in Section 18.6 Generating a Key. Once you have a key, make sure you are in the /usr/share/ssl/certs/ directory, and type the following command:

make testcert

The following output is shown and you are prompted for your passphrase (unless you generated a key without a passphrase):

umask 77 ; \
/usr/bin/openssl req -new -key /etc/httpd/conf/ssl.key/server.key 
-x509 -days 365 -out /etc/httpd/conf/ssl.crt/server.crt
Using configuration from /usr/share/ssl/openssl.cnf
Enter pass phrase:

Next, you are asked for more information. The computer's output and a set of inputs looks like the following (provide the correct information for your organization and host):

You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
Country Name (2 letter code) [GB]:US      
State or Province Name (full name) [Berkshire]:North Carolina
Locality Name (eg, city) [Newbury]:Raleigh
Organization Name (eg, company) [My Company Ltd]:My Company, Inc.
Organizational Unit Name (eg, section) []:Documentation
Common Name (your name or server's hostname) []:myhost.example.com
Email Address []:myemail@example.com

After you provide the correct information, a self-signed certificate is created in /etc/httpd/conf/ssl.crt/server.crt. Restart the secure server after generating the certificate with following the command:

/sbin/service httpd restart